Cellulose nonwoven with fast liquid-discharging and anti-return properties: A microplastic-free surface layer for disposable absorbent hygiene products

被引:0
|
作者
Liu, Mei [1 ]
Ma, Chi [3 ]
Chen, Yong [1 ]
Wang, Yaning [1 ]
Xu, Jielin [1 ]
Li, Zhenguang [1 ]
Deng, Lili [1 ]
Zou, Liming [1 ]
Wu, Jing [1 ,2 ]
Wang, Huaping [1 ]
机构
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
[2] Donghua Univ, Innovat Ctr Text Sci & Technol, Coinnovat Ctr Text Ind, Shanghai 201620, Peoples R China
[3] Sateri Fiber Co Ltd, Jiujiang 332017, Peoples R China
关键词
Disposable absorbent hygiene products; Microplastics; Cellulose nonwoven; Fast liquid-discharging; Anti-liquid-return property; ZINC-OXIDE NANOPARTICLES; COTTON FABRICS; DURABLE ANTIBACTERIAL; ZNO;
D O I
10.1016/j.cej.2024.151291
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nowadays, the waste of non-biodegradable disposable absorbent hygiene products (DAHPs) has become one of the biggest solid waste in landfills. In this work, the cellulose nonwovens (CNW) were adopted to develop fully biodegradable, microplastic-free surface layer for DAHPs. To achieve this goal, the high hydrophilicity and lack of antibacterial properties were tackled by simultaneously grating tert-butyl isocyanate (TBIS) and anchoring nano zinc oxide (nano-ZnO) on the CNW substrate via a two-step process. The urethane groups formed between cellulose and TBIS strongly coordinates with nano-ZnO, pivotally constructing a cellulose-based surface with moderately-high hydrophobicity with a water contact angle (WCA) of 139.7 degrees, superior antibacterial rates (> 90% against Escherichia coli and Staphylococcus aureus), an excellent air-permeability (2621 mm<middle dot>s(-)(1)) and a good breaking strength (66.9 N<middle dot>5cm(-)(1)). Compared with the commercial sanitary products, the assembled sanitary product with laser-meshed cellulose surface exhibits an even faster liquid discharging ability (< 5 s) and an excellent anti-liquid-return property (> 96%). This innovative, functional cellulose-based fabric holds immense potential for application as sustainable, and microplastic-free surface layer of DAHPs.
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页数:12
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